Out-of-equilibrium dynamical fluctuations in glassy systems.

Journal Article (Journal Article)

In this paper we extend the earlier treatment of out-of-equilibrium mesoscopic fluctuations in glassy systems in several significant ways. First, via extensive simulations, we demonstrate that models of glassy behavior without quenched disorder display scalings of the probability of local two-time correlators that are qualitatively similar to that of models with short-ranged quenched interactions. The key ingredient for such scaling properties is shown to be the development of a criticallike dynamical correlation length, and not other microscopic details. This robust data collapse may be described in terms of a time-evolving "extreme value" distribution. We develop a theory to describe both the form and evolution of these distributions based on a effective sigma model approach.

Full Text

Duke Authors

Cited Authors

  • Chamon, C; Charbonneau, P; Cugliandolo, LF; Reichman, DR; Sellitto, M

Published Date

  • November 2004

Published In

Volume / Issue

  • 121 / 20

Start / End Page

  • 10120 - 10137

PubMed ID

  • 15549887

Electronic International Standard Serial Number (EISSN)

  • 1089-7690

International Standard Serial Number (ISSN)

  • 0021-9606

Digital Object Identifier (DOI)

  • 10.1063/1.1809585


  • eng